<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
${msg }
    <form action="login" method="post">
        账号<input type="text" name="username"/><br/>
        密码<input type="password"name="password"/><br/>
        <input type="submit" value="登陆"/>
    </form>

</body>
</html>